Channeler mechanism



Sept. 27,1927. 1 6 3,665 F. M. LEE

CHANNELER MECHANI SM F led April 27, 192

Patented Sept. 27, 1927.

UNITED STATES FRANK M. LEE, 0F

. 1,643,665 PATENT, OFFICE.

CHICAGO, ILLINOIS, ASSIGNOR 'ro SULLIVAN MACHINERY com- PANY, a conronarron or MASSACHUSETTS.

CHANNELER MECHANISM.

My invention relates to channeler mechanisms and more particularly to channeler gangs. I

An object of my invention is to provide an improved channelergang. Another object of my invention is to provide an improved channeler gang which will work equally well irrespective of the direction of movement of the gang during cutting, and which will prevent the excessive wear now very common with channeler gangs which results in a reduction in width of the cutting edges and so a rapid loss of efliciency as the steels wear, and which also results in a stunning or shattering of the material at the sides of the channel due to the dullness of the steels. This last is of great importance as the shattering may injure the stone. for several inches inside its surface.

In the accompanying drawings I have shown for purposes of illustration one form which my invention may assume inpractice.

In these drawings, V

Fig. 1 is a side elevation of the lower extremity of a channeler gang.

Fig. 2 is a bottom view of this gang.

Fig. 3 is asection on'the line 33 of Fig. 1.

In the illustrative form of my invention- I have shown the same incorporated in a channeler gang madeup of five steels, three of thesesteels being of the cutting type and two of the leyeling type. It will be noted that a.central steel 1 is provided with a chisel-like transversely extending cutting edge 2, this edge being of a width equal to the desired width of the channel to be cut and of considerably greater width than the thickness of the gang itself. On opposite sides of the steel 1 are steels provided with leveling edges, these steels being designated 3 and terminating in X-shaped leveling edges 4, these leveling edges likewise ex-- tending, although diagonally, entirely across the desired width of the channel to be cut and terminating in reaming edges 5 lying in the planes of the sides of the cut. The ends of the wings supporting the edges 4 will do a large portion of the reaming necessary to maintain the full width of the channel. It will be noted that the central portions of the edges 4 are cut away or flat tened as indicated at 6, this reducing the shock and the reduction in penetration that would result from the intersection of the edges 4. It will be observed that the leveling edges 4 are set back a'material distance from the bottom of the cutting edge 2. Outside of the steels 3 are additional steels 7 whose edges terminate in cutting edges 8 similar to the cutting edge 2 and like that edge extend completely across the groove, but set back above the edge 2 a material distance although these edges are not set back quite so far as the leveling edges .4. The degree of advance of the edges 8 under the edges 4, however, is but slight. It will be understood that the ends of the edges of the steels 1 and 7 lie in surfaces in which reaming edges at the sides of the steel are also found, and these reaming edges are saved by the similar edges on the steels 3.

From the foregoing description the mode of operation of my improved channeler gang will be clearly apparent. Assume that the gang is being reciprocated and is making a. cut from left to right. The cutting edge 8 of theright hand steel 7 will then cut a series of closely spaced notches penetrating the stone for a material distance, say, dependingnpon the hardness of the stone, of an inch; the leveling edges 4 next behind the edge 8 will then smooth down the parallel transverse ridges in the bottom of the cut, and next the edge 2 passes over the cut and leveled surface and form a secondseries of notches. When the channeler reaches the opposite end of its out and starts back the other steel 7 will work along during the initial cutting, although the cutting down by this steel will not be so great as will be the case were the edge 2 not present, for the edge 2 having made a material cut will not leave so much work for the edge 8 to accomplish. The left hand pair of X-like leveling edges 4 smooth down the ridges left after the edge 8 has passed and ,the edge 2 will then again out a deeper series of notches in the leveled stone.

This channeler gang has given excellent satisfaction in practice and by reason of the multiplicity of leveling edges 4 preserves the cutting edges and maintains the full width of the channel, the tendency to round off of the cuttingv edges 2 and 8 being markedly reduced since the ends of the wings which support the edges 4 do a large part of the reaming necessary. Further the pres-' 'ence of the cutting edge 2 considerably relieves the edges 8 of the work of maintain ing a full width cut clear to the bottom, and accordingly all the steels of the gang cooperate in producing an improved gang in which the wearing away of the corners of the cutting edges (resulting either in a resultant narrowing of the gage of the channel or the need for changing steels in the gangs at frequent intervals) is avoided.

While it have in this application specili-- cally described one form which my invention may assume in practice, it will be understood that this form of the same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.

What i claim as new and desire to secure by Letters latent is:

l. A channeler gang comprising a central cutting edge, cutting edges arranged on each side of said cutting edge. and a plurality of X-shaped intermediate leveling edges between said central cutting edge and each of said other cutting edges, said side edge cutting edges and said leveling edges being set back from said central cutting edge.

2. A channeler gang comprising a central cutting edge, cutting edges arranged on each side thereof and set back from the horizontal plane of said central cutting edge, and a plurality of intermediate leveling edges between said central cutting edge and each of said other cutting edges, said leveling edges being disposed outside of the zone between the horizontal planes in which said cutting edges lie.

5. A channeler gang comprising a central cutting edge, cutting edges arranged on each side of said cutting edge and set back from the horizontal plane of said central cutting edge, and a plurality of intermediate X-shaped leveling edges between said central cutting edge and each of said other cutting edges, said leveling edges terminating in reaming edges.

l. A channeler gang comprising a central cutting edge, cutting edges arranged on each side of said cutting edge and'set back from the horizontal plane of said central cutting edge, and a plurality of intermediate X-shaped leveling edges between said central cutting edge and each of said other cutting edges, said leveling edges terminating in reaming edges that lie in planes disposed laterally to the shank portion of said gang.

5. A channeler gang comprising a central cutting edge, cutting edges arranged on each side of said cutting edge and set back from the horizontal plane of said central cutting 9. A channeler gang comprising a steel.

terminating in X-shaped leveling edges, the wings supporting said edges terminating in reaming edges.

10. A- channeler gang comprising a steel having intersecting terminal diagonal edges ending inreamingedges lying in the planes of the sides of the cut. I

11. A channeler gang-comprising a steel having intersecting terminal diagonal edges ending in reaming edges lying in the planes of the sides of the cut and laterally of the steel shank. I

12. A channeler gang comprising a central steel-having a cutting edge projecting further than the edge of any other steel, and symmetrically arranged cutting and X- shaped leveling edges arranged at opposite sides of said central edge.

13. A channeler gang comprising a steel having acutely angled crossed edges.

14. A channeler gang comprising aplurality of transverse cutting edges and spaced intermediate crossed edges. 7

15. A channeler gang comprising a central cutting edge, cutting edges at, each side of said cutting edge, and spaced intermediate crossed leveling edges disposed.between said cutting edges.

16. A channeler gang comprising aplurality of cutting edges, spaced crossed leveling edges disposed between said cutting edges, and reaming edges formed adjacent said cutting edges.

17. A channeler gang comprising a plurality of steels having straight and spaced crossed cutting edges disposed in different horizontal planes. i

18. A channeler gang comprising a cutting edge, an X-shaped leveling edge set back from the horizontal plane of said cutting edge, and a cutting edge disposed below the horizontal plane of said first mentioned cutting edge.

In testimony whereof I affix my signature.

. FRANK M. LEE. 

